SE2521A60

RangeCharger™ 2.4 GHz Wireless LAN Front End

177-DST-01 Rev 1.4 Apr-04-2006

Confidential

9 of 16

QA040406

2nd, 3rd Harm onics vs. Output Pow er

(25 C, 2450 MHz, 802.11b 1 Mbps CCK Signal)

-70

-65

-60

-55

-50

-45

-40

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

Output Pow er (dBm )

2nd Harmonic

3rd Harmonic

Figure 7: 802.11b Typical Harmonic Performance (1 Mbps, CCK)

CW Typical Performance

IMD3, IMD5 vs. Output Pow er (25 C, 2450 MHz, CW)

-80

-70

-60

-50

-40

-30

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

Output Pow er (dBm )

IMD3

IMD5

P1dB vs. Frequency (25 C, 3.3 V, CW)

24

24.5

25

25.5

26

26.5

27

2400

2420

2440

2460

2480

2500

Frequency (MHz)

25

26

27

28

29

30

31

32

33

P1dB

Gain

(a)

(b)

Figure 8: Typical CW Performance (a) IMD3, IMD5 vs. Output Power, (b) P1dB, Gain vs. Frequency

Detector Performance

VDET vs. Output Pow er over Frequency (25 C, 3.3 V, CW)

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

2

4

6

8

10

12

14

16

18

20

22

Output Pow er (dBm )

2400 MHz

2450 MHz

2500 MHz

VDET vs. Output Pow er over Voltage (25 C, 2450 MHz, CW)

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0

2

4

6

8

10

12

14

16

18

20

22

Output Pow er (dBm )

2.7 V

3.0 V

3.3 V

3.6 V

(a)

(b)

Figure 9: Typical Power Detector Response: (a) Over Frequency, (b) Over Voltage